Boke-blacs- asto



.Eigul'eisa plan. of apartof the-bottom.

f horizontal section, i

[ADAM Wingene, or New Yoann. Y.

i 'Lam ParmeNeloaraaeaaafuzy 26,1870.

4TheV Echednlc referred to in these Letters Patent and making part of the same. I n

`To ttll'whom it may concern.- y 4Be it known thatl, ADAM WEnERfbfthe city of New York, in the 'county arrestate of New-York,

have invented Vnew and useful llprove'ments'in Furnaces for Reburning Bone-Black and Reducing Orcs;

andI do herebydeclare that the followingis a full,

' clear, and exact descripticnztherof, whichwill enable -others skilled in the "artto make anduse 'the same,- reference being had to the accompanying drawing forming part of this specification.

This invention relates to improvements in furnaces for reburning bone-black and-reducing ores, such as patented to me the 4th,'day of June, 1,867, No. 65,470..

The invention consists in certain improvements in the Iconstructionand:arrangement ofthe same, as

j hereinafter described.l

u' Figure 1 is a transverse sectional elevation oi' improved furnace, takenon the line a: x,iig., '3.

.Filgure 3 is a horizontal section on the line y y of g..." Figure 3V is a detail section showing )the arrange ment of theretortsfat the bottom and the' plugs for stopping the same. Y

IF gure'- 4 is a view, partly in plan and partly in letters-of reference indicate corresponding In the improves fum vertical referer of creamy orother substance, with openings at the top for-feeding of the 'substance to be acted upon, and at the bottom for discharging, are nsed,the` said retorts be;l ing arranged withinthe `inclcsing walls. of the-coms bustion-chamber 'soasto be surrounded by the fire, and the 4ivh'ole heingsupported-on pillars above the'` j grouudfor the admission oiworhmen and trucks be- `low fortlremovingthe substancestreated from: time to- 4time.

.A represents Athe sidowalls D represents the' lveiticalfireclayor other retorts f vzhiolnreston the regbrick Tor other heat-resistingy tiiesyE, having holes I through them vertically coincid- -ing with the vertical chambers of .th'e' retorts g' :they

also hlave grooves .or channels-in their upper faces exs tending fromthe-youter, surfaces of the-sidewalls to, chambers of lthesaid retort for Vthe inner sides of the Itheoutfolfslidesy: y' I These tiles E are supported by resting o'n the' hot- .'tom metal plates H, which placed on' the topsof- `the postsl If, the saidfptilobeingjntroducedabovs the'said plate Hite preveut theheatfrom escaping in the downward direction as much as possible.

ing from front torear in place'. of intermediate postsv have. stiening anges, H. l'

y .-for supporting the structure; between the endsthey 1 'ing with thecliambers inthe retorts 'and the holes in thetiiesn. Y

plate, K, with holes coincidingtvitl1 Lthe holes inQO', and having the flangesv L. projeoting-' 'l for the protection of the covering (3.1

The lire-grate is arranged in one e El, arethe same, causing vthe product-of ctnnbnstiony to pass hack between the retorts,v under the walls Q,

to the walls A, therrnp Iaround the upper parts of said retorts, through 'passages S, to the longitudinal .ues 0 l? above the arches 'l1'. I

I propose, however, to arrange 'between theends.

andedges, as Vmay be required, when they are to be used for reducing ores', I provide the A studs orrprojecltions V on the sides which meet together, as shown in iigsr aand 4, and brace the saidsides very rmly.' I

For closing'the netorts at the bottom t0 hold tholsubstance?while being acted on, I now propose to use signedto overharitheA holes in the tile E', the'said: holesaheing made'larger foithe purpose, as shownin projecting"V downward the bottoni' plates, or

'or suitable wayl' ends'with recla`y, vare first putin.' vIfproposc' g H* represents girders, which are introduced between thetops of the posts I andl the plate"H,and entend--l ""Thes'eplates H also have verticalholes correspond-v' The top coveringl C' also "has holes coiuciding vvith l the chambers 'of the restarts, andfabo've' itis afmetal..

Y tween-two series vof these retorts at the bottom of thefspace'fMg. L the same as shown inA the patent above referred: to,=

juefspacesNsO P, and. thendividingwalls Q.

firesgrates and doors y in both ends in some eases, when it isdesiied ij.orn akcV furnaces of great capacity, in which oase yI #would place the passage ,through the top for the, final escapel v, of the product of combustiomat or about the center,l

For strengthening the retorts laterally, at the sides plugs orlstoppers composed oi thelanged-metal cnps 4W, and the. tire-brick or other'suitable non-conducting and heat-resisting ,lining X, shaped-so as to t snugly inthe holes-through the plates Handthe' brick-tile E," and vagainst the" bottom 'of thev rotor-ts, which `are. del

iig.4 3, the said blocks being .held in positionsby 'y pivotedio them, vand engaging with the catchstud l he said plugs mayrhesupported' in-any 'otherl approved V 'The ohjectofhavingthe ends of the pings-'t against the ends of -theretorts is to make tight-jointsthereat, when' the plugs, which are first Aluted on the'-A make holes, X', through these blocks 'for drawing ofi' the slagfrom time to time,as is sometimes required, to prevent n n accumulation around tbe bottom of the retorts, where it 'sometimes congeals and obstructs thev removal of the plug and the iron.

` The slag fuses at a low heat, and is liable to act in this way.

These holes are to be stopped by luting them up Yin the way common in stoppingithe taps of blastfurnaces or cupolas. l

Y is a waterholding trough or tank placed below the tire-grate, to receive the droppings and quench them, so-that they will not interfere with tions of the workmen below.

. The bone-black, ore, and other substance to be heated are placed in the retoxts, filling'them to the top, and exposed therein to the action ofthe heat 'surrounding them, which, in the case of the bone-black,expels the 1vegetableruatter collecting upon it when used for fil- `tenng for purifying sugar or molasses.

f The purified bone-black is then discharged through the bottom into proper receptacles or carts, trucks, or other vehicles placed under the retorts.

The said retorts are iilled at the top as fast asreduction takes place, or they are discharged at the bottom, and the operation goes on continually.

. The stoppers are removed or let fall from time to` time, for discharging the ore or other substances.

-When iron, copper, lead, and` otherlike ore is reduced in'this way, the heat is such as will reduce it to apasty condition, in which it will not iiow; it therefore settles down, upon a platform or other device on the truck, which can be removed in a mass, of aboutthexform in crosssection of' the interior spaces of the retorts -irom which it issues, and is separated from that remaining in the space above bythe slides F, or

by knivesor cutters of any kind; then it is`furtherlet the opera-I f down' for the top to escape from the plate H, and is conveyed away to the forge-hammers or other machine for working' it, to expel the slag and other matters.

The stoppers are replaced again after the discharge, f

being first luted with tire-clay or other substance,

around the top, to close the' joint thereat, and prevent y leakage. I

The said s toppers will of course be quite heavy and difficult to handle,and I propose to provide a truck with apparatus for receiving and letting them down and raising them again, the said apparatusy to be worked by hand or any other convenient means. The trucks, after receiving the stoppers, vare removed which are then run under to receive it.

Having thus described my invention,

uI lclaim as new and `desire to secureby Letters Patent- 1.. The combination, with the femm D,`of the me E, provided with the holes and the grooves, asdescribed, and arranged on the plate H, all substantially as specified. 2; The combinations, wit-litho retorts, of the cutfoff slides I and the Stoppers X, substantially as Witnessesz GnonGnW. Mense, L. S. Manns.

out of the. way'of the Atrucks forreceiving the ore, 

